Instrumentation Development of Raster Scanning Densitometer.

摘要

The Raster Scanning Densitometer is a digital video image densitometer/memory/processor which is a new, versatile and powerful tool for use in image processing and display tasks. The unit combines a fast analog to digital converter, a high capacity random access memory, and a high-speed arithmetic unit--all under microprocessor control--to perform a variety of digital video processing functions in real time. Among several other uses, a prime function for the Raster Scanning Densitometer will be to scan and digitize fire control system video signals for the determination of modulation transfer function. (Author)